feat: update Docker image tag to latest

Update the Docker image tag to 'latest' in both the README.md and docker-compose.yml files to ensure the latest version of the 'replicate-flux-lora' image is used.

Author: rtuszik

README.md

@@ -55,7 +55,7 @@ A simple web interface for running Flux models using the Replicate API. Use it t
 ```yaml
 services:
   replicate-flux-lora:
-    image: ghcr.io/rtuszik/replicate-flux-lora
+    image: ghcr.io/rtuszik/replicate-flux-lora:latest
     container_name: replicate-flux-lora
     environment:
       - REPLICATE_API_TOKEN=${REPLICATE_API_TOKEN}

docker-compose.yml

@@ -1,7 +1,7 @@
 
 services:
   replicate-flux-lora:
-    image: ghcr.io/rtuszik/replicate-flux-lora
+    image: ghcr.io/rtuszik/replicate-flux-lora:latest
     container_name: replicate-flux-lora
     environment:
       - REPLICATE_API_TOKEN=${REPLICATE_API_TOKEN}